beremiz

py_ext: fix CSV Writer

18 months ago, Edouard Tisserant
d2f5eb3c7d6e
py_ext: fix CSV Writer

fix POU logic :
- SAVE is a BOOL
- invocation of py_eval on rising edge of SAVE
- remove save python argument

fix python:
- use no encoding for file open (python2)
- re-use detected dialect if any
- use no "rt+" and truncate since no need to re-sniff dialect for output file
- return "OK" instead of "#SUCCESS", preventing POU logic to ACK result
- support creating new line if writing just after last line
- support appending data on short rows

fix example:
- use a HMI:Button to trigger CSV write instead of HMI:Input +1
- reload CSVs on on each new CSV opened in file browser
- add display of CSV write output
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# See COPYING file for copyrights details.
from itertools import repeat, islice, chain
from connectors.SchemeEditor import SchemeEditor
Schemes = ["WAMP", "WAMPS"]
model = [('host', _("Host:")),
('path', _("Path:")),
('port', _("Port:")),
('realm', _("Realm:"))]
class WAMP_dialog(SchemeEditor):
def __init__(self, *args, **kwargs):
self.model = model
self.EnableIDSelector = True
SchemeEditor.__init__(self, *args, **kwargs)
# pylint: disable=unused-variable
def SetLoc(self, loc):
hostportpath, realm, ID = list(islice(chain(loc.split("#"), repeat("")), 3))
hostport, path = list(islice(chain(hostportpath.split("/"), repeat("")), 2))
host, port = list(islice(chain(hostport.split(":"), repeat("")), 2))
self.SetFields(locals())
def GetLoc(self):
fields = self.GetFields()
# TODO : input validation test
template = "{host}" + \
(":{port}" if fields['port'] else '') +\
("/{path}" if fields['path'] else '') +\
"#{realm}#{ID}"
return template.format(**fields)